You wonder eh? me too XDI didn't omit it but you can, it's from some older server source.I think it's some mob/boss skill, they're also all stored in the same table as player magic spells that's how it got in there. A lot other of that kind missing in the list I posted as well.

There's tons of spells that were taken out; for quite a few of them the icons, voice commands and effects are still there; we don't know the proper effects and/or balancing though since the code is deleted. Anyway, that opens a whole other topic than custom interfaces